Radiator



June 2, 1931. BETTS 1,808,202

RADIATOR Filed Nov. 13. 1929 INVENTOR gw t I! ATTORNEY V Patented June 2, 1931 1 7 EVERETT BETTS, OF MILAN, MICHIGAN RADIATOR Application filed November 18, 1929. Serial No. 406,779.

This invention relates to a radiator especially adapted for use in connection withheating systems, and its object is to provide a construction having maximum heat radiating qualities and arranged to deflect and direct the heated air currents whereby the heated air is projected into the room away from a Wall adjacent which the radiator may be placed. A further object is to provide a ra- 1o diator of simple construction presenting a maximum of radiating surface, with this .surface so arranged as to give a maximum air flow in contact therewith to quickly carry away the heat imparted thereto by the flow of heating medium through the radiator,

and to so direct this flow of the heating medium that it is brought into direct contact with all parts of the radiator without unduly restricting such flow. It is also an object to provide a construction whereby the radiator may be quickly and conveniently externally cleanedv of dust and dirt, and to provide certain other new and useful features in the construction and arrangement of parts.

With the above and other ends in view, the invention consists in the several matters hereinafter set forth and more. particularly pointed out in the appended claims, reference being had to the accompanying drawings, in

which Figure 1 is a transverse vertical section substantially upon the line 11 of Figure 2, through a structure illustrative of an embodiment of the present invention;

Fig. 2 is a longitudinal vertical section substantially upon the line 22 of Figure 1; and

Fig. 3 is a transverse section through two units of the structure, substantially upon the line 33 of Figure 1.

v The radiator as a whole is made up in the usual manner, of a plurality of units or sections secured together at their upper and lower ends, the inlets of the several sections being connected for intercommunication throughout the length of the radiator, in the usual manner, and the outlets areconnected in a like manner, the heating fluid such as steam or hot water being led to the radiator through an inlet pipe 1 and discharged through an outlet pipe 2, it being optional in the installation, as to Whether the inlet and outlet pipes be connected to the lower and upper ends, respectively, as shown, or in a reverse manner. The end sections of the structure are formed with the usual supporting legs 3, they being otherwise substantially the same as the intermediate sections except as hereinafter pointed out, and therefore, a description of one section will apply to all.

Each section is cast as a unit with a transverse opening therethrough at its extreme upper and lower ends and preferably adja- M cent one side of the radiator which will hereinafterbe referred to as the rear side, it being usually installed with that side adjacent a wall of the building, and these openings are bossed with the bosses 4' extending laterally of the unit from each side thereof and the bosses 5 at the upper end, similarly extended so that when the several units are as sembled, the ends of the bosses on one unit will abut the bosses on adjacent units and accurately space the several'units, continuous open fluid passages being thus formed at both upper and lower ends of the radiator throughout its entire length in the usual manner, the only difference being that these passages are preferably located adjacent the rear side of the radiator.

Each unit is formed hollow along its entire front'and rear side edges thus providing" vertical tubular passages or legs 6 and 7 along the front and rear vertical vedges respectively, and these tubular passages are both in open communication withthe inlet and outlet openings at their lower and upper ends respectively, the passage 6 being curved toward the outlet atthe rear of the radiator over and across the upper end thereof.

These side legs or passages 6 and 7 are connected by a series of transverse tubes 8 open at both ends into these legs and forming flow passages for, the heating fluid to efiect a 9% transverse flow from rear to front of'the radiator and dividing the flow into a large number of separate streams, these tubes being separated, one from another by openings 9 therebetween so that each tube is exposed on I rear leg 7 to the front leg 6, all of these tubes are inclined forwardly and upwardly so that heating fluid entering their rear ends from the vertical leg or passage 7 will naturally rise therein and flow into the front vertical leg or passage 6. This cross jflow is further aided by forming the rear passage 7 with an upward taper, that is it is of lesser cross-sectional area at its upper end than at its lower end, and by forming the front passage 6 with a reverse taper, that is, of lesser cross-sectional area at its lower end than at its upper end. Fluid is therefore resisted in its upward flow through the rear leg by this upward contraction thereof and the upward flow in the front leg is accelerated by the gradual upward enlargement of this front passage, and therefore, cross forward flow of fluid through each unit is not only promoted by the forward and upward inclination of the cross tubes but also by the restriction to upward fiow in therear leg 7 and the expansion of flow upwardly in the front leg 6. i

A rapid circulation through every part of each unit is therefore promoted and the heating fluid is divided during cross flow into a large number of separate streams, each quickly giving off its heat to the air flowing over the exterior of these several tubes.

Flow of air through the radiator from rear to front thereof between the several units and over and around each cross tube, is insured by forming fins .10 on each tube 8 extending longitudinally of the tube parallel with the upper side thereof and extending laterally therefrom inopposite directions, the edges of the fins on one section abutting the edges of the fins on adjacent sections or units, the abutting fins thus forming inclined walls dividing the vertical space between the tubes of adjacent sections, into transverse air passages extending forwardly andupwa'rdly with their rear ends open at the rear side of the radiator and their forward ends open adjacent the forwardedge of the radiator. Air caused to flow upwardly through the radiator 'by the heat imparted thereto, is confined within these transverse air passages formed by said fins and causedto travel toward the front of the radiator along each tube 8. to quickly take up heat from the surface thereof- Further, this flow of air is directed through the front side of the radiator instead of passing vertically and out at the upper end. The heated air is thus ejected into the room away from the room wall adj acent which the rear side of the radiator is placed and said wall is thus in a measure, protected against becoming over heated or dirt and dust being deposited thereon by the rising heated air. As shown, the end sections of the radiator which are provided with the supporting legs 3, will be formed without the fins 10 on the outer sides thereof, but the several spaces between the adjacent sides of the several sections will be divided into a plurality of transverse upwardly and forwardly inclined air passages with the air passages of each row throughout the length cross section, but they may be given any otherdesired formas Well asthat of the front and rear legs or passages, and the front side of the radiator at its upper end may be.

curved rearwardly as shown or given any other desired configuration. Also the heating. fluid inlet pipe may be connected to the upper end of the radiator instead of to the lower end as shown and'the construction will function substantially the same. Obviously other-changes maybe made in form, construction or arrangement of parts without departing from the spirit vof the invention, and I do not, thereforelimit myself to the particular construction shown.

7 Having thusfully described my invention, what I claim is v r 1. A radiator structure including a plurality of units secured together and together forming horizontal fluid passages at the upper and lowerrends of said structure extending from end to end thereof, and each unit formed with a vertically extending-passage adjacent its forward ,edge and a vertically extending passage adjacent its rear edge, said passages being in open communication at their upper and lower ends with said horizontal passages, each of said units being formed with transverse tubular passages opening at their ends into said vertical passages and inclined in the direction of. their length, upwardly of the unit, said vertical passages being of lesser cross-sectional area at oneend than at the other.

. 2..A radiator unit formed with'openings surrounded by bosses extending in opposite directions laterally from said unit to space units apart when a number thereof are assembled into a radiator structure and form inlet and outlet passages at the upper and lower ends of said structure,Said unit being also formed with verticalhollow edge members forming passages at the front and rear edges of the unit and also formed with passages at the upper and lower ends of said unit connecting said passages of said edge members, said passages of said edge members being of lesser cross-sectional area at one end than at the other, said passages at the upper and lower ends of said unit being in open communication with said inlet and outlet passages, and with transverse tubular passages connecting said vertical edge passages and spaced apart, said tubular passages being inclined in the direction of their length forwardly and upwardly of said unit.

3. A radiator comprising a plurality of units secured together in lateral spaced relation, each unit being formed with laterally and oppositely extended hollow bosses to space the units apart and together form inlet and outlet passages at the upper and lower ends of the structure, each unit being also formed with hollow edge portions forming vertical passages at the forward and rear side edges of the unit with said passages in open communication with said inlet and outlet passages, said hollow edge portions being oppositely tapered in the direction of their length to restrict the flow of fluid therethrough, and each unit being formed with a plurality of tubular members connecting said vertical passages, said tubular members of each unit being spaced apart and inclined in the direction of their length forwardly and upwardly of the unit.

4. A radiator comprising a plurality of units secured together in lateral spaced relation, each unit being formed with vertical edge passages and inlet and outlet openings at the upper and lower ends of said unit in communication with said vertical passages, and a plurality of transverse tubular members forming individual passages connecting said edge passages and inclined forwardly and upwardly of said unit, and fins extending laterally from said tubular members across the spaces between adjacent units and forming air passages to direct air transversely of the structure and out of the forward ends of said air passages.

5. A radiator structure comprising a plurality of units secured together side by side in spaced relation, each unit being formed with laterally and oppositely extending hollow bosses at its upper and lower ends to space the units apart and together form inlet and outlet passages at the upper and lower ends of the structure, each unit being also formed with vertical hollow front and rear side edge members providing vertical passages communicating at their ends with said inlet and outlet passages, each of said units being also formed with a plurality of transverse tubular members spaced apart and opening at their ends into said vertical passages of said edge members, said tubular members being inclined forwardly and upwardly of said unit, and fins on said tubular members extending longitudinally thereof parallel with the upper sides of said tubes and beyond the ends of said tubes, the edges of said fins on one unit abutting the edges of said fins on adjacent units and forming walls extending across the spaces between said units and dividing said spaces into a plurality of separate air passages opening through the forward side of the radiator structure.

In testimony whereof I afl'ix my signature.

EVERETT D. BETTS. 

